Unless the particular war is specified, this question is too broad to be answered.
the confederacy fired the first shot of the civil war
The South fired the first shot in the American Civil War.
according to status and history the south fired the first shot on fort sumpter
lexington
The first shots were fired at the bridge of Concord
Nobody knows for sure. A shot was fired, and troops on both sides fell to.
The British fired the first shots of American Revolutionary War at Lexington, on April 18,1775.
Bunker Hill
Anticipation of glory
Afghanistan
Japanese
The South